Parkinson's disease, a progressive neurological disorder affecting more than 1 million people in the U.S. and more than 10 ...

Muscle twitches fall into two main types. There’s myoclonus, where a whole muscle or group of muscles twitch or spasm. Then ...

New research suggests pain is not a simple signal of injury but a process that unfolds across nerves, spinal cord, and brain.

If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it ...

The U.S. economy is very close to falling into a damaging contraction — and many states are already experiencing a recession, according to Mark Zandi, chief economist at Moody’s Analytics. Zandi ...